Self-piercing clinch nut



FIG. 1 is a perspective view of a self-piercing clinch nut including a plurality of lungs angularly spaced about a central pilot, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a vertical cross-sectional view taken along line 3—3 of FIG. 2;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a side elevational view. 

The ornamental design for a self-piercing clinch nut, as shown and described. 